Butterfly Twists, a brand of foldable shoes, is holding a rain fair in time for the rainy season.

The brand's rain shoes can be folded down to one-third of their original size for easy storage. They're perfect for slipping into your bag on the way to work or keeping them at work as a "shoe locker."

During the fair, customers who purchase eligible Butterfly Twists products will receive an original pocketable eco bag as a gift (while supplies last).

Participating stores include Seibu Department Store (Ikebukuro, Funabashi), Sogo (Yokohama, Chiba), Free Park Marunouchi KITTE, FONDUE (Omotesando, Ebisu Mitsukoshi), and Premicoromy (Atsugi, Shin-Yokohama, Nihonbashi, Odawara, Tokyo Station, Futakotamagawa, Ebisu). The fair will run until late June, with start and end dates varying by store.

Butterfly Twist also offers ballerina shoes and pocketable loafer-type shoes.